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ocfs2: Hold ip_lock when set/clear flags for indexed dir. 

When we set/clear the dyn_features for an inode we hold the ip_lock.
So do it when we set/clear OCFS2_INDEXED_DIR_FL also.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Tao Ma 2010-12-15 16:30:00 +08:00 committed by Joel Becker
parent 41b41a26d4
commit 8ac33dc86d
1 changed files with 4 additions and 0 deletions
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4
fs/ocfs2/dir.c
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@ -2461,8 +2461,10 @@ static int ocfs2_dx_dir_attach_index(struct ocfs2_super *osb,
di->i_dx_root = cpu_to_le64(dr_blkno);
spin_lock(&OCFS2_I(dir)->ip_lock);
OCFS2_I(dir)->ip_dyn_features |= OCFS2_INDEXED_DIR_FL;
di->i_dyn_features = cpu_to_le16(OCFS2_I(dir)->ip_dyn_features);
spin_unlock(&OCFS2_I(dir)->ip_lock);
ocfs2_journal_dirty(handle, di_bh);
@ -4466,8 +4468,10 @@ static int ocfs2_dx_dir_remove_index(struct inode *dir,
goto out_commit;
}
spin_lock(&OCFS2_I(dir)->ip_lock);
OCFS2_I(dir)->ip_dyn_features &= ~OCFS2_INDEXED_DIR_FL;
di->i_dyn_features = cpu_to_le16(OCFS2_I(dir)->ip_dyn_features);
spin_unlock(&OCFS2_I(dir)->ip_lock);
di->i_dx_root = cpu_to_le64(0ULL);
ocfs2_journal_dirty(handle, di_bh);